Q. Which is true of brachial plexus? (Solved)
1. the trunks lie behind scalene muscle
2. accessory phrenic nerve fibres run to superior mediastinum with long thoracic nerve
3. median nerve divides at the carpal tunnel, lateral branch supplies thenar muscles and medial branch supplies lumbricals (2)
4. ulnar nerve in 95% of cases picks up C7 fibres from lateral cord
5. branches of radial nerve rise just proximal to their destination
- d. ulnar nerve in 95% of cases picks up C7 fibres from lateral cord